When does the dog days of summer begin in 2020? How are the dates of the dog days of summer calculated?
Introduction: The start time of the dog days is not fixed every year, so when does the dog days of summer begin? How do we calculate the dates of the dog days of summer in 2020? Let’s follow the editor of Shuimoxiansheng.com to learn more about it!When does the dog days of summer begin in 2020?Dates for the beginning of the dog days in 2020:Thursday, July 16, 2020 (May 26, Gengzi Year (Year of the Rat), 66 days until the beginning of the dog days of 2020) Rufu means entering the dog days of summer. "The first dog days are counted from the third Geng day after the summer solstice." This is the basis for establishing the first dog days. The calendar stipulates: "The dog days begin on the third Geng day after the summer solstice." This means that starting from the summer solstice, the dog days begin on the third Geng day. The "Geng day" here refers to the day with the prefix "Geng" in the ancient "Ganzhi calendar". The date of Gengri is variable and not fixed, so the date of the beginning of the dog days is different every year, but it is always between July 11 and July 20. How to calculate the dates of the dog days?There are three hot days in a row, each of which lasts for ten days, and this is calculated according to the ten number of the heavenly stems. Therefore, the three dog days are divided into: the third Geng day after the summer solstice is the beginning day of the first dog day.For example, the summer solstice in 2006 was on June 21st of the Western calendar. The heavenly stem day of that day was Xin Day. 28 days later, it was the third Geng Day. Therefore, July 20th of 2006 was the beginning of the first volt. Ten days later, there is another Geng day, which is July 30, and it enters the second dog days; ten days later, there is another Geng day, and it is the first Geng day after the beginning of autumn, which is August 9, and it enters the third dog days; If it is 2007, July 15th is the third Geng day, which is the beginning of the first Fu (the first Fu); ten days later, there is another Geng day, which is July 25th, and it enters the second Fu (the middle Fu); ten days later, there is another Geng day, but it is not yet the beginning of autumn. After another ten days (the middle Fu of this year has 20 days), there is another Geng day, and it is the first Geng day after the beginning of autumn, which is August 14th, and it enters the third Fu. This means that it is very hot after the beginning of the dog days every year, especially the ten days (sometimes twenty days) in the middle of the dog days, which are the hottest. There is a saying among the people that "the coldest days are in the 39th day of winter, and the hottest days are in the 5th day of summer". New algorithm in the 21st century - Gengri formula: GR = (D - [Y/4]) MOD 10 (GR Gengri, D is 1 for even years and 6 for odd years, Y year, [ ] is rounded up, MOD is the remainder) The first dog days GR plus 10 (except in 2084, no addition), the middle dog days GR plus 20, and the last dog days GR minus 1 when it is greater than 7 and plus 9 when it is less than 8 (except in 2096, minus 1). For example, in 2006 GR = (1 - [6/4]) MOD 10 = 0 (10), the first dog days are July 20, the middle dog days are the 30th, and the last dog days are August 9. Marriage is one of the most important things in life, and the traditional method of matching marriages is still very practical. To predict your marital happiness in advance, please click on the "Excellent Calculation" below. I wish you a happy marriage! |
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